Facebook problem on phone?

[Apple]

I can't log out the icons are not there even the notification icon and message box icon is missing nothing shows up I can go on google and on different sites but I can't log out of Facebook my phone is Samsung gt-s5830I

[Arnaud]

if you want to use Facebook on an android phone, you should use the Facebook app.
some mobile browsers don't support the facebook lay-out.
you should see if your browser supports switching between mobile mode and desktop mode.
if it does, you should try both of em. if it doesn't, you will have to clear your mobile browser history (there is a chance your browser doesn't have this option.)